String-nailer.



L. E. JOHNSON, STRING MAILER.

APPLICATION FILED AUG.20. ISIO.

Patented Apr. 6, 1915.

4 SHEETS-SHEET 1.

L. E. JOHNSON.

STRING NMLER.

APPLICATON FILED AUG.2 0, 1910.

4 SHEETS-SHEET 2.

Patented Apr. 6, 1915.

L. E, JOHNSON.

STRING NAILER.

APPLlcA-mn man AUG.20, 1910.

15,1%y Patented Apr. 6, 1915.

4 SHEETS-SHEET 3.

I Ajman L. E. IOHNSGN.

STRING NAILER.

APPLICATION FILED AUG.20.- ISIO.

Patented Apr. 6, 1915.

4 SHEETS-SHEET 4.

' NVENTUF? VVITNEEEESF: v t ,v EN A MWREIGE JOHNSGN, F ST. JOSEEH, MSSOURI, ASSIGNOR, T SPECIQLTY SHOE MACHXNERY s TOUL C0., OF ST.

JOSEPH, MISSOURI.

STRING- NAILER,

Speeicaton of Letters Patent.

resented Apr., e, i915.

Application led flug-ust 2o, 1910. Serial No. 578,191. I

Siate of ifiissoori, have invented certain new' usefnl improvements in Stringddailers, of Wiich the following is a speciiication. lily invention relates to shoe nailing inachines and refers especially to that typo of apparatus designed to-use nails whici are connected in. .a eontinuous string and supplied to the feeding mechanifmi in this form. The els. f objectsof the improvements which constitute the subject metter of this application for patent arezMTo provide an eiizci vnt mechanism adapted to handle nailsin string forni, and to permit die use ofdifj ferent sizes of nails 1n the saine noaclfnne Without changing the mechanism, it being only necessary 'to lead the end of the selected nail string to its proper channel. a plurality of such strin being suitably arranged in the niarliine s i hat :my one of them muy he selected as i" :sii-ed.

@ther ol @is of this invention to provide positive nail feed whereby the nail string is aiivanced step hy Heep to bring the nails conn'iosing if; siiocislzively into a posil Y are within he pathof the ce. the arrrngenient'heing d nail at a time can he "g to furnish means for seven selected, I'iro'viding therefor g mechanism whereby the nvely severed from their conilio string und removed to the he mail .ient shJ nails are .s nection wir nailing p:

Furiher i are to provide efficient nail i whereby the severed nail 'iinty and precision into the worin suitably arranged and x' s soiiilly lv ld oy proper devices; to furnish indopei. lcnly operated means whereby the shoe into 'which the nails are tohe driven is fed by moving it predetermined (listances, so as to properly space the driven nails apartgto provide a pie feed aivl whereby the necewery nail holes are formed in 'the sli' sole; said owl having this fonction in addi n to being the operaii-ve member for the shoe feed, and to furof the modified implement or nish moans for gnging or guiding the shoe sol il accomplish the desired results by emf portion of a shoe nailing machine embodying my improvements, one of the arms carrying the drive shaft being broken away; Fig. 2 is a top plan view of the mechanism illustrated in Fig. l; Fig. 3 is a side elevation of the mechanism shown in Fig. l viewed from the opposite direction, one bearing for4 the drive shaft being broken away and the reels removed; Fig. 4 is a front end elevation of the parts shown in Fig. 1; F ig, 5 is a bottom pian v ievv of the shoe feed; Fig. 6 is an end view of 'the parts shown in Fig. 5; Fig. 7 is a sectional view taken on the line 7-7 of Fig. Fig. 8 is a detail view of the cam-Wheel which operates the shoe feed; Fig. 9` is a view showing'the nail guide removed; Fig. l0 is a sectional View taken on the line 10-10 of Fig. 9; Fig. 11 is a fragmentary View showing a front elevation of the nail feedin and driving mechanism; Fig. l2 is a View slowing a portion of the nail feeding and driving mechanism in side elevation; Fig. 13'is a bottom plan View showing the throat and operating arm therefor in de-` tail; Fig. 14 is a fragmentary sectional view taken on the line l4-14 of Fig. 12; Fig. 15 is aside elevation of a portion of the shoe feed, showing a modified form of cam; Fig. 16 is an enlarged view of the end of the nail feed arm and dog; Fig. 17 is an edge view form of cam shown in Fig. l5. for operating the shoe feed; F ig. 18 is a 4fragmento ry view, enlarged, showing the eX- treme end of the central bracket arm; Fig. l) is a side View of a modified form of a nail4 guide block, providedwith a nail feed stop; Fig. 20 is a side elevation of the block shown in Fig. 19, with the feed stop attachments removed; Fig. 21 is a front elevation of the parts shown in Fig. 19, with the feed dog omitted, and. Fig. 22 is a fragmentary View of the upper end of the nail stop plate, viewed from the inner side.

Referringkto the details of the drawing, the nu' 1.25' indicates a base plate from ivliiclirlse. tivo integral arms 26,5paced apart' and surmoun'tedghy boxes 27 forming bearings fora drive'oi cam shaft 28. Upon the middle of this shaft is mounted a cam disk eo p.

lll)

iioimed with @um various find ieto?? tim aait oodiioo; md im d tho nail dri iiiochzi wi :mi also ottriiiiodtho i@ Oizitotiio abovo moo i dovif-i. Anis-loting iateiziily from iat@ is an onsioii 31 having :i i'ooi :ii: 1i 32, proie-ating and 'ioiiiing upon the .ity piuiiiiity i i'ooiS l upon which the iiaii. rings; 54-

Wouiid, as shown iii Fig. 2.

The soyoizii operations of feeding tiio naii t iig. sovoi'iiig the maiis Ai'iom their for@ iiortion tooio'to :and piaci?? 'wird J Lilo sovoiod nai] 'within the path oi'f tho drivel', Wiii nov-.f bo desciibod in dotaii. y

The mi?. string is; led trom 'the roei diiootiy to a ciiiiinoi or; conduit 35, formed in a guido biook 3 3 und 9. This block is supported on the 'forward ond ot the zum 30 by :i littoral pifojootimi or :dido min S37 which is fitted to move in si horizon- "roi gi'oovo formed in the sido ot said mm f). Tho slide arm 37 is hold in piace by a izitcii pini: sooui'od to tho mit; 25) by screws it?. 'in order to accommodate differo'ot sizes of maiis.. there may be sevoirai. of tha said oonoiiits :md tout such cli-.finnois am iiiusti'iitvd in the drawings, aii'onged parat ioi mid oxo; ding iii an inoiinod diiiootion., :is siiowii iii Figs. 9 mid 10. Those conduits oro ioz'mod by cutting in ono time oib the tiiocii 3 'the ioquisito mumbai.' of' grooves oi", suitable dimensions to accommodate the mail triiifgs, tho bottoms ot time grooves being iii-1 @iin/it ioiiitivoy to tho face of the block. iiio conduits are oompioted by inserting in theo@ giiiovos thin iiiing strips 41, secured by pins These strips oiosotho fronts of the grooves only, leaving opacos behind them to ioi-m the conduits dovvn which tio mail are fed, as aforesaid. The Suid ooiidiiito9 boing inclined :it different angies, ooi' o out upon the face of the guide block ai; difi'oi'oiit dimtziiicois fi'om'tixo bottom of the Mook as shown in Fig. 9 these' diS- h of the tonces coii'iisponding to the long mail for which that particuizuf :slot 'is-'ari im god umd@ 'toi' adjusting the Siido chad Mook 56, when slid iatbring iio food conduits 35 'tho working'point., by the i ,'oooz----i52tonding.woitioniiy in Hao :om 30, i'i'om the groove 38, a. second ggajoi'ivo i3 (Fig. i2) in which is s'ioiibiy noimvd :i latch iii (Fig. having its iov/oi' omi zidzilotodwtfi engage notches 45 in tho tippe? odg@ of 'tho said siido ii-m Tho latch is heid in 'its groove the hitch plato 39 and is; Ui'god doivnwziid by f; coiled spring 4.o. The iiitoii is operated by a pin It?" jpojooting through a slot in the hitch plate,

By iofoionco to i9. in which this n@ string is indiwtod iii dotted oiiti xviii obsoiofod at ti'io iist- Smil i string occupies the ,groove 257 mid sin iattoi' is made d ,op @Hough to aecomo tti@ body only of tho moi, iis it coi'iscqiioii o tho lip of tho nail head 'will project iioyozid the. time oi the block, :is iiidioatod :it 18. and tiiislpojaoiing iip iiezg iii tho patti of zav miii moo iiioiiinoi' consisting' ot :i piling-ii' (Fig. 1l) i'ootniguliii' iii cross sootioii and arranged to siido vertically in a gioovo Si() (Fig. l2) forme-)d in :11 plato 5l Secured tho ond face of the from@ :erm 30. @ne ot' the groove 50 if-i out away as indicated 529 Fig'. -i, and the piungor has one ooi" 5 iabbete-d as indici/atomi :it 53, Fig. 19., so that one of im focos will tio tiusii with tho fao@ ot the piste 51 and thus bo iii connai/ft with the inner surface. of the. guido block 36.., opposite the group of mit conduits T i iowoi ond ofthe smid piuiiggei is fiii'iiisiod with a, rocoso 5%' Fit@ 16, :md iii this. rango-d, o dog 5, pif'otod. to the pimigei 56, and heid iii im oiitoided positioiiby Spi-ing 5'?? so that oiio iower comas oi'' when the plunger :it the oppor port ot stroke, and when at its; lower position said comer 58 Wiii engage the projecting' lip 48 and carry the i'ifiii downward to 'die ond of tim stroke modo by the piuzigoi. is the mail is stili attached tothe string tti-is downward iiiovomoiit Wiii bring;

mail into the position pz'oviousiy ooou pied bythe first one, and when tho piimgoi again amends the Spring 57 will yioid to ai'iotv tho dog to poss the iip. The said plunger or nail food i9 is operated 4by a :toed bai. oi. rook 'lover 59, Fig. 3, pivotod to iio ium 30 by a boit 60, which passes thi-o1 oars 5i intl-:gral with Suid zum. The i'eiii" ond ot the ibook iovoi 59 is provided with i i'oiiei" 62 which ongagos a :zum groove 6&5 in tho sido oit the com disk Q9, White the foi'- ii'ad end has n, slot. or notch 64 engaging' a.

roiioi- 65 attached to tho upper end oi mail food 49.

@Wien tho imi] 'fo/.i dowiiivziid by noohuiisiii iioovo dofnoribod. it is stili. :it

ytaciiod to the iiziitoti'ing. that the Vjoivotod to tho undoi' side. of tho iii-m l30 by u. shouldered screw 69 so as to move im a.

ideeen? lioirizon :E piene, end when the seid leve? is opel l., Mie pini' will #cooperate Wien the iena-.u edge of l; le mm BQ, indicated 11?; TG, no gevel the il ,il :ille e'itieehment 13e the String., The real? end of line Enid shearing levee posee; ioeeli along die of 'die arm 50, Fig. Si, and is; supplied with an enidieion rollen 7l, which engages time face of. elle nein. disk 29 new he pexfipliei'y, so die@ it tra-vele on'ieide the loemiion of 'he came Groove enown in r" fece o'f ille disk ne path of he said i" s' in deni'eseed foi" e pari: eircom Je 'enc-e, es innioaed YQ, iii-e depen of? die dine foizned d eimi'o ie' lie' move of 'lielliroe mi, L e op; end of tile n GTL A Spring; 73,. snppo'tefl algien. n ,.ie'i; i, causes elle ier 'il e inigdie a ee of the disk:gr and :is he shearing; nove eles place 'While the rolle? 71 passes ein the iowesi: 'lio the hio'lieet pail; o 'die le, ii will vbe eeen iie lie :ici/ion of 'die in punitive, s I consequently e a eemllel Sla and nel behind .i el@ is a simili-ii pli-inge? and, l2) hereinafter denignnied :Tim diri' This drive? is elidnbiy ,.ed in e. l,egioom 76 in the The iegi'oo': reduced in below and in by the plete 51 to form e nail duel; The neil driver hns attached izo iis end an efieeion foifning driver W' if which ie ited to reoip'ioeei'e in the 2774 with the lnovenieni; of the driven'. e leiten is operated by meelmniem nolou me to lmi; which controle nail ifeed befoi'e desciiiied. roei: leve? 79 (Figs. l., Qa and 3)* benl; new. ne middle end lim-'ing iis opposite portions eymmetriealiy enirved, if; nivoted en he ooit @0 between 'the ears 6]. The forward end is formed wili a notch or slot 80 to operatively engage e roller Sl attached to the upper end of lie driver. The rear end of elle said levenb "i9 e'x'ends to point directly over he 'center oi 'the diei; 29 and upon. the side opposiie to 'lmt upon which. elle lever 59 is arranged and "i feied wii en antidrietion roller 82 nel* tile nailing' mechanism above i eil'eeli ic ieneeessory to lieve co4 enfui. Shop feeding menne, ineidenallffY combining Liiei'ewitlfi menne foif'piei'einp; ille work to *facilitate the enm'nnee oi. the nnii Seemed to the side of the central frame arm. 80, upon ille eide opposile ao else feed leve? :39, is a nozzle' lever 84 (Fig. il pivoted on :i screw 85. Ellie mail' end o f; level' terminates in a curved extension or arm bearing upon iis extremity en anti-frietii'm roller 87, which engaged 'by a cam wheel 88 mounted on ille Shaft ilonejside the disk Q9 but with un inlegvzil. beween 'ehem suiiicient to permit die play of the lever 79, Attached 'l'o'tlie lever is :i bracket 89, which carries :i Poele mim 9%), pivoted at 91. The rear end of he seid anni ie provided with an anti emo-tio ollei' 92 ndenied to engage the cam Wheel .il wiiiie lane forward end is connected by a @einer 923 io im eye 9&2 on @the rock lever Si? 'Elie endeney el' the spring thus being' o mrz'y lie opposite eno of the level' away iem the @um Wheel To counteract vlle ucion the spring; 95 when desired and held @lie roller 9:2 in 'position to be engaged by Elie fia/iid @am n feel, a Siep 95 is pivot-ally mounted noon iii-zieke?, beneath the E of the said me This stop in made eenen 1e and l ,ovided with a pin o1' handle by' :nee ef which the Seid :non 95 can "ne inlined o different angular positions to edine 'fne mn 90, i'elelzive "io lie cem 'wheel o1: oy mening the said stop half a revolw- 'tion the Said may be thrown too position. en o' the pat-li of die cin/n, rende-ing it inopei'aive. The rollers 9% are noi in' elle saine planeybnit each has ite separate.

path el? imvel on the fece of the eem Wheel and the peripliey of the latter has mieed portions; 97, 97a, lying-,5' in the with of the .rollers and 92A respectively, and these. raised and depressed iiiortions are so i'elaed that 'when the arm 8C is moved away from o1' toward the center of the cam, the ce operating :mn 99 will move in the opposite diiecl'ion, time z'oeliiii'ig thelei'er 84; upon its center 85. llfflonnted" upon the seid lever 84 parallel with, its upper edge and eci-extensive therewith is e roelnslmft 98 which posses ei', the I'eeif end through e box 99 formed in 'tlle'biaeliet 8S?, and et the forward end exi/ends thi'oug'l. a. bearing in .fi box or bracket, 100 formed integral wiali said lever Aitziehed io the rear end of said rock- Slia'; ie e curved arm lOl having a rollen 1.(12/ which pioiee-s i'no he path. of n. lng lf3, extending radially fiom elle periphery of the ouin 88, and' having its advancing edge inclined, the purpose of this mechanism being; to rook 'the Seid shaft et each revoluion of ille cam shaft 28 by the engagemeni: of the i'oliei lOZ 'by the lng 103 i spring i041 retnzningz the sliziif 98 to its initial ,p leien when releaeed, The opposite end of the :amid eliaif'- is info'ffieled wiii .e crank-arm 105,. having a cmninpin UG 'wliiel'i engages a swinging feed levezb 10'? pivoted et 108 to the in a general Way, is as follows :--The shoe upon which a sole is to be nailedis placed upon the anvil (not shown) with the edge of the sole in contact with the lguide lug 115.

f not previously adjusted the bar 114 is vnow moved by means of the handle or lever 1,16 util the awl 108 will pierce the sole at the required distance from the margin. The selected nail string having been inserted into its corresponding duct and the latter brought to theoperative position by shifting the guide block 36, the cam or drive shaft 28 is set in motion by operative connection (not shown) from a drive pulley 139 mounted on the shaft 28 with anv suit- "able source of power. 'hen the said shaft rotates, its first action will be to move the nail feed plunger 49 downward, the dogY eng-ging the overhanging lip 48 of the nail which lies in the groove 35a 40 and carrying the said nail downward in the manner hereinbefore described. At the cessation of this movement the shearing lever 67 will be swung by the action of its cam 72, severing the nail and carrying.,r it to a position directly beneath the driver bar 78. In the meantime the lever 84 has been rocked by the cam 88 so as to thrust the awl 108 into the sole, and the shaft 984 rocked to feed the shoe one step; 4The lever 84 is of this instant rocked back to its initial position, withdrawing the awl, which is returned by the spring 104, to its first position. The driver now descends, :forcing the severed nail into the puncture made by the awl, and is quickly returned to the beginning of itsstroke thus completingr the cycle of movements required for feed:

`further rotation ing member, a dog ing and driving a single nail. 1t will be understood that when the first nail is ied downward and severed it will leave the succeeding nail in the groove 40 in position to be engaged by the feeding dog 55, and a ot' the.cam shaft 28 will cause a' repetition of thernovements above described a"nail being driven at each revolution of the said shaft.

Having thus described myinvention what i claim as new is:

1. In a shoe nailing machine, the com bination with a frame, and means for supporting nail strings in roll form, of an adjustable nail guide having a plurality of differently formed nail conduits therein, nail 'feeding means comprising a reciprocatfl yieldingly mounted on said member and adapted to successively" .engage the heads of the nails, a cam shaft, a cam-disk mounted on the cam shaft, and an operative connection between said disk and the reciprocating member.

i). In a shoe nailing machine, the com-l bination with a frame, a plurality of reels adapted to hold nail strings, means for feeding the nailsnail severing means, and a nail driver, of shoe fee-d' means, com prising a roclclever, and a roclrshaiit 'mounted on said lever, a camshaft, a dish: on said shaft, an operative connection beh-veen said disk and the nail feeding means, thenail severing means andY the nail driver, a camwheelY on said cam-shaft feeding means.

3. In a' shoe nailing machine, the combi nation with a frame, a plurality of reels adapted to hold nail strings, a nail feed, a. nail shear, and a nail driver, of shoe eedingr means, comprising a rock-lever, a rockshaft mounted on said lever, an awl opersaid lever, a aprirne, for the shaft, an awl operatively connected with said shaft, a camshaft, a cam-wheel on said camshaft, arms on said rock-lever. engaging 'the periphery of said `aheel at diametrically opposite points, and means for adjusting one of said 5. in a shoe nailing machine, the combination with a. frame, a plurality of reels adapted to hold strings ot' connected nails, nail feedin means, nail. severing means, and nail riving means, of shoe iieedinn,4

l means, comprising a rock-lever, a rocirsiiaft mounted on said lever, a spring for the shaft, an awl pivoted on said lever, a crank arm on said shaft engaging,7 said avvl, a. carnshaft, a camwheel on the camshaft, a fixed arm on said rock-lever engaging said T"iieel, a movablearm on said lever also engaging and an. operative' connection between said wheel and the shoe said Wheel, and means for adjusting, said movable arm,

6. In a shoe nailing machine, the corn-bi- 'nation with a frame., reels adapted to hold strings of connected nails, nail .feeding means, nail severingmeans and nail driving means, of shoe feeding means comprising' a rockdever, a soie piercing mem* ber pivoted on said lever, a recit-shaft mounted on said /lever and adapted to swing said piercing? member on its pivot,

a cam-shaft, means on said eamshaft for operating said rock-lever and a shoe guide,

'd'. ln a shoe nailing machine, the com-- bination `with a ilrame,'reels adapted to hold strings of connected nails, a. nail. feeding member, a nail severing member, a nail driver and a sole piercing member, of a. cam shaft, a cam-disk mounted on said shaft,

and rock-shaft,

cam grooves; on the opposite faces of said n tr-stimony wheizz disk, laval-s pivoted on. said 'frame and enture in the p11A sens@ o? "mo gagging. Said Cami. grooves, operative onne- LXVRFQTF F 'Linn bctwumi said evers and thc, said nml d J' feeding and naii driving ixembeis7 anni Nimessesz means inependent 0f said cam-disk 01* KAYG. Poa'rmz,

feeding the shoe.. SUSAN LAWRENCE. 

